source: xtideuniversalbios/trunk/XTIDE_Universal_BIOS_Configurator_v2/Src/BiosFile.asm@ 591

Last change on this file since 591 was 589, checked in by Krister Nordvall, 8 years ago

Changes:

  • BIOS: Fixed a purely cosmetic bug from r542 where, in builds containing MODULE_EBIOS, the boot menu would display an incorrect drive size (0.4 kB with MODULE_STRINGS_COMPRESSED or 0.5 kB without) for old drives with no support for LBA.
  • Fixed a bug from r392 where Vision_DetectAndReturnIDinAXandPortInDXifControllerPresent would return the ID in AL instead of AH (if DANGEROUS_DETECTION had been defined).
  • Fixed a bug from r587 in AdvAtaInit.asm that would prevent detection of QDI Vision controllers.
  • Also changed how the QDI Vision IDs are defined (removed the need for shifting) to avoid confusion. This fixed a potential bug from r587 in AdvAtaInit.asm where some IDs were not being shifted.
  • Fixed a bug in PDC20x30.asm from r587 where GetPdcIDtoAX would not return with the IDE base port in DX so DisablePdcProgrammingMode would fail.
  • Made some changes to ModuleDependency.inc and other files so that MODULE_ADVANCED_ATA now requires USE_386. Consequently it is no longer included in the regular AT-builds, only in the 386_8k-build.
  • Moved the UNROLL_SECTORS_IN_CX_TO_xWORDS macros from IDE_8bit.inc to IdeIO.inc which means it's now possible to build a BIOS without MODULE_8BIT_IDE.
  • XTIDECFG: Added a minimum DOS version check (since it needs DOS version 2+) to allow the program to quit gracefully in the unlikely scenario where someone tries to run it under DOS version 1.
  • Made some changes to Drive.asm to improve drive enumeration. The old method using GET_DOS_DRIVE_PARAMETER_BLOCK_FOR_SPECIFIC_DRIVE worked well in Windows XP but not in Windows 98 SE (in Windows or in DOS mode). The two problems were; 1) The function call would access the drives which on single floppy drive systems would cause Windows to swap between A: and B: (throwing a blue screen asking the user to insert a disk etc). 2) Only floppy drives and FAT16 drives would be available in the list of drives, no FAT32/optical/network drives.
  • Improved code in IdeControllerMenu.asm so that the default port addresses for all IDE interfaces are now restored when (re-)selecting the (same) type of IDE device.
  • Also made it impossible to select a device type unless the required module is included in the loaded BIOS.
  • The version check done when loading a BIOS now uses the FLASH_SIGNATURE definition from Version.inc. Any changes affecting RomVars now only requires updating that definition. This means that changes to RomVars must be implemented in both the BIOS and XTIDECFG before being committed to the repository.
  • Added a compatibility fix for 3Com 3C503 cards to the ROM checksumming code in Buffers.asm (Buffers_GenerateChecksum).
  • SerDrive: Made some minor changes to file names and paths to improve compatibility with case sensitive environments.
  • BIOSDRVS: Made a minor size optimization which as a side effect also makes it compatible with all DOS versions including DOS version 1.
  • Library: Renamed the WAIT_RETRACE_IF_NECESSARY_THEN macro to CALL_WAIT_FOR_RETRACE_IF_NECESSARY_THEN and made a tail-call-optimized version of it (JMP_WAIT_FOR_RETRACE_IF_NECESSARY_THEN).
  • A speed optimization to the eRCL_IM macro for 386 and higher. This change breaks emulation in the sense that the macro will fail when given a memory operand as the first parameter.
  • Other minor optimizations and fixes.
File size: 5.9 KB
RevLine 
[57]1; Project name : XTIDE Univeral BIOS Configurator v2
2; Description : Functions for loading and saving BIOS image file.
3
[376]4;
[526]5; XTIDE Universal BIOS and Associated Tools
6; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2013 by XTIDE Universal BIOS Team.
[376]7;
8; This program is free software; you can redistribute it and/or modify
9; it under the terms of the GNU General Public License as published by
10; the Free Software Foundation; either version 2 of the License, or
11; (at your option) any later version.
[526]12;
[376]13; This program is distributed in the hope that it will be useful,
14; but WITHOUT ANY WARRANTY; without even the implied warranty of
15; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
[526]16; GNU General Public License for more details.
[376]17; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
[526]18;
[376]19
[57]20; Section containing code
21SECTION .text
22
23;--------------------------------------------------------------------
24; BiosFile_LoadFileFromDSSItoRamBuffer
25; Parameters:
26; DS:SI: Name of file to open
27; SS:BP: Menu handle
28; Returns:
29; Nothing
30; Corrupts registers:
31; AX, BX, CX, DX, SI, DI
32;--------------------------------------------------------------------
33ALIGN JUMP_ALIGN
34BiosFile_LoadFileFromDSSItoRamBuffer:
35 push ds
36
[68]37 call .OpenFileForLoadingFromDSSIandGetSizeToDXCX
[57]38 jc SHORT .DisplayErrorMessage
[68]39 call .LoadFileWithNameInDSSIhandleInBXandSizeInDXCXtoRamBuffer
[57]40 jc SHORT .DisplayErrorMessage
41
42 mov ax, FLG_CFGVARS_FILELOADED
[68]43 call Buffers_NewBiosWithSizeInDXCXandSourceInAXhasBeenLoadedForConfiguration
[136]44 call FileIO_CloseUsingHandleFromBX
[293]45 call DisplayFileLoadedSuccessfully
[57]46 jmp SHORT .Return
47
48.DisplayErrorMessage:
49 call FileIO_CloseUsingHandleFromBX
50 call DisplayFailedToLoadFile
51ALIGN JUMP_ALIGN
52.Return:
53 pop ds
54 ret
55
56;--------------------------------------------------------------------
[68]57; .OpenFileForLoadingFromDSSIandGetSizeInBytesToDXCX
[57]58; Parameters:
59; DS:SI: Name of file to open
60; Returns:
[293]61; BX: File handle (if successful)
62; DX:CX: File size (if successful)
63; CF: Clear if successful
[57]64; Set if error
65; Corrupts registers:
[68]66; AX
[57]67;--------------------------------------------------------------------
68ALIGN JUMP_ALIGN
[68]69.OpenFileForLoadingFromDSSIandGetSizeToDXCX:
[57]70 mov al, FILE_ACCESS.ReadOnly
71 call FileIO_OpenWithPathInDSSIandFileAccessInAL
72 jc SHORT .FileError
73 call FileIO_GetFileSizeToDXAXusingHandleFromBXandResetFilePosition
74 jc SHORT .FileError
75
[68]76 cmp dx, MAX_EEPROM_SIZE_IN_BYTES >> 16
[589]77 jb SHORT .FileNotTooBig
[57]78 ja SHORT .FileTooBig
[68]79 cmp ax, MAX_EEPROM_SIZE_IN_BYTES & 0FFFFh
80 ja SHORT .FileTooBig
81.FileNotTooBig:
[57]82 xchg cx, ax
83 clc
84 ret
85.FileTooBig:
86 call DisplayFileTooBig
87 stc
88.FileError:
89 ret
90
91;--------------------------------------------------------------------
[68]92; .LoadFileWithNameInDSSIhandleInBXandSizeInDXCXtoRamBuffer
[57]93; Parameters:
94; BX: File Handle
[68]95; DX:CX: File size
[57]96; DS:SI: File name
97; Returns:
[293]98; CF: Clear if successful
[57]99; Set if error
100; Corrupts registers:
101; AX, SI, DI, DS
102;--------------------------------------------------------------------
103ALIGN JUMP_ALIGN
[68]104.LoadFileWithNameInDSSIhandleInBXandSizeInDXCXtoRamBuffer:
[57]105 push es
106
107 call Buffers_GetFileBufferToESDI
108 call Registers_ExchangeDSSIwithESDI
[68]109 call FileIO_ReadDXCXbytesToDSSIusingHandleFromBX
[181]110 jc SHORT .ReturnError
[57]111
[181]112 ; Store filename to Cfgvars from ESDI
[57]113 push cx
114
[107]115 call Registers_CopyESDItoDSSI ; File name in DS:SI
[57]116 push cs
117 pop es
118 mov di, g_cfgVars+CFGVARS.szOpenedFile
119 cld
120 call String_CopyDSSItoESDIandGetLengthToCX
[181]121 clc
[57]122
123 pop cx
[181]124ALIGN JUMP_ALIGN
125.ReturnError:
[57]126 pop es
127 ret
128
129
130;--------------------------------------------------------------------
131; BiosFile_SaveUnsavedChanges
132; Parameters:
133; SS:BP: Menu handle
134; Returns:
135; Nothing
136; Corrupts registers:
137; AX, BX, CX, SI, DI
138;--------------------------------------------------------------------
139ALIGN JUMP_ALIGN
140BiosFile_SaveUnsavedChanges:
141 push ds
142
143 push cs
144 pop ds
145 mov si, g_cfgVars+CFGVARS.szOpenedFile
146 call BiosFile_SaveRamBufferToFileInDSSI
147
148 pop ds
149 ret
150
151
152;--------------------------------------------------------------------
153; BiosFile_SaveRamBufferToFileInDSSI
154; Parameters:
155; DS:SI: Name of file to save
156; SS:BP: Menu handle
157; Returns:
158; Nothing
159; Corrupts registers:
160; AX, BX, CX, SI, DI
161;--------------------------------------------------------------------
162ALIGN JUMP_ALIGN
163BiosFile_SaveRamBufferToFileInDSSI:
164 push es
165 push ds
166
167 call Buffers_GenerateChecksum
168 call Buffers_GetFileBufferToESDI
[484]169 call EEPROM_GetXtideUniversalBiosSizeFromESDItoDXCX
[138]170
171 mov al, FILE_ACCESS.WriteOnly
172 call FileIO_OpenWithPathInDSSIandFileAccessInAL
173 jc SHORT .DisplayErrorMessage
174
175 call Registers_CopyESDItoDSSI
[68]176 call FileIO_WriteDXCXbytesFromDSSIusingHandleFromBX
[57]177 jc SHORT .DisplayErrorMessage
178
[136]179 call FileIO_CloseUsingHandleFromBX
[57]180 call Buffers_ClearUnsavedChanges
[293]181 call DisplayFileSavedSuccessfully
[57]182 jmp SHORT .Return
183
184.DisplayErrorMessage:
185 call FileIO_CloseUsingHandleFromBX
186 call DisplayFailedToSaveFile
187ALIGN JUMP_ALIGN
188.Return:
189 pop ds
190 pop es
191 ret
192
193
194;--------------------------------------------------------------------
[293]195; DisplayFileLoadedSuccessfully
196; DisplayFileSavedSuccessfully
[57]197; DisplayFailedToLoadFile
198; DisplayFailedToSaveFile
199; DisplayFileTooBig
200; Parameters:
201; SS:BP: Menu handle
202; Returns:
203; Nothing
204; Corrupts registers:
205; AX, DX
206;--------------------------------------------------------------------
207ALIGN JUMP_ALIGN
[293]208DisplayFileLoadedSuccessfully:
[57]209 mov dx, g_szDlgMainLoadFile
210 jmp Dialogs_DisplayNotificationFromCSDX
211
212ALIGN JUMP_ALIGN
[293]213DisplayFileSavedSuccessfully:
[57]214 mov dx, g_szDlgMainSaveFile
215 jmp Dialogs_DisplayNotificationFromCSDX
216
217DisplayFailedToLoadFile:
218 mov dx, g_szDlgMainLoadErr
219 jmp Dialogs_DisplayErrorFromCSDX
220
221DisplayFailedToSaveFile:
222 mov dx, g_szDlgMainSaveErr
223 jmp Dialogs_DisplayErrorFromCSDX
224
225DisplayFileTooBig:
226 mov dx, g_szDlgMainFileTooBig
227 jmp Dialogs_DisplayErrorFromCSDX
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